%0 Journal Article %A McComas, Casey C. %A Ziller, Joseph W. %A L. Van Vranken, David %D 2000 %T Neutral Ru(η5-pyrrole) Complexes. Synthesis and Structure of Diazaruthenocenes and Ru(1-3:5,6-η5-C8H11)(η5-pyrrole) Complexes %U https://acs.figshare.com/articles/journal_contribution/Neutral_Ru_sup_5_sup_-pyrrole_Complexes_Synthesis_and_Structure_of_Diazaruthenocenes_and_Ru_1-3_5_6-_sup_5_sup_-C_sub_8_sub_H_sub_11_sub_sup_5_sup_-pyrrole_Complexes/3762369 %R 10.1021/om000189n.s002 %2 https://ndownloader.figshare.com/files/5869683 %K C 2 symmetry %K pyrrole %K THF %K NC 4 %K 3 RuCl 2 %K Ph 3 P %K η 5 %K C 8 H 12 %X The synthesis of metal complexes with anionic η5-pyrrole ligands is generally complicated by the free nitrogen lone pair. Methods are reported for the synthesis of two types of neutral η5-tetramethylpyrrolyl (NC4Me4) ruthenium complexes. Ru(η5-NC4Me4)2 is prepared from (Ph3P)3RuCl2 and lithium tetramethylpyrrolide in refluxing THF. A chiral diazaruthenocene with C2 symmetry is prepared from 2,3-dimethyl-4,5,6,7-tetrahydroindole. Attempts to prepare diazaruthenocenes from [Ru(η4-C8H12)Cl2]x led to deprotonation of the COD ligand to form a complex Ru(1-3:5,6-η5-C8H11)(η5-NC4Me4) isoelectronic with Ru(η5-NC4Me4)2. %I ACS Publications